Airtac JSIJ63~80 Adjustable Cylinder JSIJ63X350-75S
The AirTAC JSIJ63~80 Adjustable Cylinder JSIJ63X350-75S is a genuine double acting, double rod, adjustable stroke JIS-standard air cylinder with a Ø63mm bore and 350mm stroke, G3/8 air ports and adjustable end cushioning. Its no-tie-rod, hard-anodized profile barrel is more compact than an ISO 15552 cylinder of the same bore — a space-saver on tight machines.
- BoreØ63 mm
- Stroke350 mm
- Port sizeG3/8
- Acting typeDouble acting, double rod, adjustable stroke
- Rod threadM18×1.5
- CushionAdjustable, 29 mm
- No minimum order. A single piece can be ordered.
- Ready in 3–5 business days. That is the time we take to process the order and hand it to the carrier. Transit time after that depends on the destination.
About the Airtac JSIJ63~80 Adjustable Cylinder JSIJ63X350-75S
Its external adjuster lets you shorten the extend stroke on-site by up to 75 mm, giving a usable range of 275 to 350 mm while the retract end remains fixed. The hard-anodized aluminum barrel makes it shorter and more compact than a same-bore ISO 15552 unit.
This double-acting double-rod unit features a built-in magnet for CMSE/DMSE sensors that drop directly into the side grooves. Air flows through a G3/8 port, and adjustable 29 mm cushions decelerate the piston at both ends. Remember that the cushion only softens the stop; a plain cylinder drifts on air loss, so fit an external rod lock or pilot-operated check valve if you need to hold a load.
Airtac JSIJ63~80 Adjustable Cylinder JSIJ63X350-75S Technical Specifications
| Model | Airtac JSIJ63~80 Adjustable Cylinder JSIJ63X350-75S |
|---|---|
| Series | JSI JIS-standard profile cylinder |
| Bore size | Ø63 mm |
| Stroke | 350 mm |
| Acting type | Double acting, double rod, adjustable stroke |
| Port size | G3/8 |
| Rod thread | M18×1.5 |
| Fluid | Air (filtered by 40µm element) |
|---|---|
| Operating pressure | 0.15 – 1.0 MPa |
| Proof pressure | 1.5 MPa |
| Temperature | -20 to +70 °C |
| Speed range | 30 – 800 mm/s |
| Cushion | Adjustable, 29 mm |
| Max standard stroke | Up to 1500 mm |
Specifications follow the official AirTAC JSI (JIS standard) datasheet. Confirm against the product label before installation. Thread options: PT (blank) / G. Barrel: hard-anodized aluminum profile (no tie rods).
Theoretical Output Force (Ø63mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 1402 N | 1402 N |
| 0.7 MPa | 1962 N | 1962 N |
| Max (@1.0 MPa) | 286 kgf | |
JSIJ is double-rod: the rear rod that carries the stroke adjuster passes through the rear cover, so both piston faces lose rod area. Push is shown at the annular-area value (conservative).
Model Code: Airtac JSIJ63~80 Adjustable Cylinder JSIJ63X350-75S
| JSIJ | JIS-standard profile cylinder (adjustable-stroke type). |
|---|---|
| 63 | Bore size in mm (32 / 40 / 50 / 63 / 80 / 100 / 125). |
| ×350 | Stroke length in mm. |
| -S | Optional built-in magnet for CMSE / DMSE sensors. |
JSI-family variants: JSI (double acting), JSID (double rod), JSIJ (adjustable stroke). Mounting: LB / FA / FB / CA / CB / CR / TC / TCM1 / TCM2. Thread PT (blank) / G.
Where the Airtac JSIJ63~80 Adjustable Cylinder JSIJ63X350-75S Is Used
Press Stroke Tuning
Dial in the exact 275 to 350 mm extend position on a light assembly press without machining new hard stops.
Variable Transfer Pusher
Adjust the pusher end-point on-site to handle different carton lengths on a packaging line.
Shared Spare Inventory
Keep one cylinder in maintenance stock and shorten its extend stroke as needed to fit multiple 63 mm machines.
Is the Airtac JSIJ63~80 Adjustable Cylinder JSIJ63X350-75S the Right Cylinder?
The adjustable -75 mm window is ideal for sharing one spare across multiple stroke variants or fine-tuning the extend position on the machine without swapping the cylinder. You can mount it via FA, LB, TC, TCM1, or TCM2 brackets. Because the 350 mm stroke is relatively long, always use an external guide to prevent rod bending and side loads. The integrated -S magnet supports CMSE/DMSE switches for position sensing.
Quick checklist
- ✓ Required force at your working pressure
- ✓ Stroke and mounting space
- ✓ Port/thread type (PT / G / NPT)
- ✓ Magnet (-S) for sensors?
- ✓ Side load — consider a guided cylinder
Installation & Maintenance Notes
- check Use clean air filtered to 40µm or finer.
- check Keep within 0.15 – 1.0 MPa operating pressure.
- check Avoid side load on the piston rod.
- check Set cushions to minimum, then release gradually.
- check Use correct mounting accessory (LB/FA/FB/CA/CB/TC).
- check Installation by qualified personnel per AirTAC docs.
Airtac JSIJ63~80 Adjustable Cylinder JSIJ63X350-75S FAQ
At 0.5 MPa it pushes 1559 N and pulls 1402 N. At 0.7 MPa it pushes 2182 N and pulls 1962 N. The theoretical maximum force is 318 kgf at 1.0 MPa. The air port size is G3/8.
The nominal 350 mm extend stroke is the maximum. An external stop screw lets you shorten the extend stroke on-site by up to 75 mm, yielding a usable range of 275 to 350 mm. The retract end is fixed, and the stop sets position only; it does not lock the load.
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Genuine AirTAC parts produced by AirTAC factory.
1-Year Warranty
Covers non-human-caused product damage.
Fast Dispatch
Standard models are processed and dispatched in 3-5 business days.
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Most inquiries answered within 7-8 hours.
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